The areas of a square and a rectangle are equal. If the side of the square is $$30\ \text{cm}$$ and the breadth of the rectangle is $$25\ \text{cm}$$, then the length of the rectangle is

A

$$36\ \text{cm}$$

B

$$42\ \text{cm}$$

C

$$38\ \text{cm}$$

D

$$40\ \text{cm}$$